\(77-11\left(30+7\right)=77-11.30+11.7\)
\(=77-77-330=0-330\)
\(=-330\)
trả lời:
\(77-11.\left(30+7\right)\)
\(=77-11.30+11.7\)
\(=77-77-330\)
\(=0-330\)
\(=-330\)
học tốt
77-11.(30 + 7 )
= 77- 330 - 77
= 77 - 77 - 330
= 0 - 330
= -330
85.( 35 - 27 ) - 35.( 85 - 27 )
= 2975 - 2295 - 2975 + 945
= 2975 - 2975 -2295 + 945
= 0 - 2295 + 945
= -1350
1) 85 . ( 35 - 27 ) - 35 . ( 85 - 27 )
= 85 . 35 - 85 . 27 - 35 . 85 + 35 . 27
= ( 85 . 35 - 35 . 85 ) - 27 . ( 85 - 35 )
= 0 - 27 . 50
= 0 - 1350
= -1350
2) 77 - 11 . ( 30 + 7 )
= 77 - 11 . 37
= 77 - 407
= -330
Học tốt !!!
=))
